Does a fast site help improve business success(comparing to a slower site similar in functionality)? Of course it does. Does performance play a role? It does. I

Does a fast site help improve business success(comparing to a slower site similar in functionality)? Of course it does. Does performance play a role? It does. Is it the only reason? No. The article does not pinpoint the success or failure of a business into a single reason. The article didn't claim "performance is The reason" that Tumblr is successful. It says "performance is most likely one of the key factors".